Find trapezoid area from the two bases and height, and verify perimeter when both legs are known.
Last updated: June 2026 | By Patchworkr Team
Base A is required.
Area: A = ((a + b) / 2) x h
Perimeter: P = a + b + c + d
For a valid trapezoid, the two leg lengths and height must be consistent with the base difference. This calculator checks that relationship before reporting perimeter.
Example: bases 8 and 16, height 3, legs 5 and 5
Related Tools
Calculate golden rectangle.
Calculate hexagon properties.
Calculate irregular polygon area.
Calculate octagon properties.
Calculate parallelogram properties.
Calculate pentagon properties.